SU-FF-T-87: An Empirical Method for the Determination of Wall Perturbation Factors for Parallel-Plate Chambers in High Energy Electron Beams

2006 ◽  
Vol 33 (6Part8) ◽  
pp. 2068-2068
Author(s):  
M McEwen ◽  
A Williams ◽  
H Palmans
2019 ◽  
Vol 46 (11) ◽  
pp. 5195-5208 ◽  
Author(s):  
Alexandra Bourgouin ◽  
Claudiu Cojocaru ◽  
Carl Ross ◽  
Malcolm McEwen

2021 ◽  
Author(s):  
Hiraku Fuse ◽  
Koichi Hanada ◽  
Tatsuya Fujisaki ◽  
Kenji Yasue ◽  
Fumihiro Tomita ◽  
...  

Author(s):  
L. -M. Peng ◽  
M. J. Whelan

In recent years there has been a trend in the structure determination of reconstructed surfaces to use high energy electron diffraction techniques, and to employ a kinematic approximation in analyzing the intensities of surface superlattice reflections. Experimentally this is motivated by the great success of the determination of the dimer adatom stacking fault (DAS) structure of the Si(111) 7 × 7 reconstructed surface.While in the case of transmission electron diffraction (TED) the validity of the kinematic approximation has been examined by using multislice calculations for Si and certain incident beam directions, far less has been done in the reflection high energy electron diffraction (RHEED) case. In this paper we aim to provide a thorough Bloch wave analysis of the various diffraction processes involved, and to set criteria on the validity for the kinematic analysis of the intensities of the surface superlattice reflections.The validity of the kinematic analysis, being common to both the TED and RHEED case, relies primarily on two underlying observations, namely (l)the surface superlattice scattering in the selvedge is kinematically dominating, and (2)the superlattice diffracted beams are uncoupled from the fundamental diffracted beams within the bulk.


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